Home / 588,945.12-812,537.16-385,115.28

Finding the Fourth Proportional to 588,945.12, 812,537.16 and 385,115.28

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Solution

The fourth proportional to 588,945.12, 812,537.16 and 385,115.28 is: 531,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,945.12 : 812,537.16 = 385,115.28 : x
  2. Step 2: Convert to fraction form
    588,945.12/812,537.16 = 385,115.28/x
  3. Step 3: Cross multiply
    588,945.12x = 812,537.16 × 385,115.28
  4. Step 4: Simplify right side
    588,945.12x = 312,920,475,883.81
  5. Step 5: Solve for x
    x = 312,920,475,883.81/588,945.12
  6. Step 6: Final answer
    x = 531,323.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.